ensure maintenance is carried out by a competent person (someone who has the necessary skills, knowledge and experience to carry out the work safely) 1  maintain plant and equipment regularly â use the manufacturerâs maintenance instructions as a guide, particularly if there are safety-critical features.
HDPE (High Density Polyethylene). 3/4 HDPE will cost about $45.00 for 100' ($0.45/ft), so depending on the amount required can be much cheaper than the previous options. HDPE is used by many municipalities as water supply lines, so it has been tried and tested in underground applications.
Check out 3dprintingpricecheck.com for a list of approximate estimates on 3D printing. Aside from the cost of an actual 3D printer, the costs to have a professional print something will range from $0.15 to $70 or more per cm2. The price will depend on the method used for printing and what needs to be printed.